---
title: "Tiffany Lozenski (@tiffany)"
description: "Rank #754 of 2498 on the Paradev leaderboard, tier 2."
canonical: https://paradev.com/tiffany
last-updated: 2026-10-26
---

# Tiffany Lozenski (@tiffany)

Rank #754 of 2498 on the Paradev leaderboard, tier 2.

URL: https://paradev.com/tiffany

## Standing

- Rank: #754 of 2498
- Tier: Operator
- Tokens: 20.55B all time
- Cost: $16822.79 API-equivalent
- Sessions: 2228
- Tracking: 2026-08-06 to 2026-10-26

## Links

- X: https://x.com/TiffanyLozenski

## How this tier was reached

Tier is a weighted score across the axes measured for you, so a strong axis offsets a weak one. Plant Manager needs a higher combined score, and cost also caps the tier on its own.
Scored on 5 axes, measured over the trailing 30 days.

| Axis | Current | Needed | Met | Measures |
| --- | --- | --- | --- | --- |
| width | 3.0 | 5.5 | no | agents running at once |
| depth | 8.2M | 23.3M | no | tokens per session |
| output | 30.0 | 6.0 | yes | agent PRs merged per week |
| sustain | 21 | 24 | no | active days in the last 30 |
| cost | $35.46 | <= $104.48 | yes | USD per merged PR, lower is better |

## Achievements

- **efficient** (level 3 of 3) at $100, earned 2026-09-07
- **plant-floor** (level 1 of 3) at 10, earned 2026-09-07
- **ship-it** (level 2 of 4) at 10, earned 2026-09-07
- **two-hands** (level 1 of 3) at 10, earned 2026-09-07
- **whole-task** (level 2 of 3) at 10.0M, earned 2026-09-07

## Milestones

- sessions: 500
- spend: 1.0K
- tokens: 1.00B

## Contributions

- Active days in the last year: 58
- Busiest day: 2026-08-26 at 1.09B tokens

## Models

| Provider | Model | Tokens | Cost |
| --- | --- | --- | --- |
| claude | claude-opus-5 | 16.47B | $13214.19 |
| claude | claude-opus-5-5 | 2.91B | $2486.23 |
| claude | claude-sonnet-5 | 415.3M | $199.06 |
| claude | claude-fable-5-1 | 199.5M | $384.65 |
| claude | claude-opus-4-8 | 177.6M | $228.87 |
| codex | gpt-5.6-luna | 154.9M | $5.94 |
| claude | claude-fable-5 | 147.9M | $262.54 |
| claude | claude-sonnet-5-5 | 21.8M | $13.19 |

## Token breakdown

- Uncached input: 13.0M
- Cached input: 19.89B
- Cache write 5m: 108.6M
- Cache write 1h: 480.6M
- Output: 56.7M
- Reasoning output: 18.1M

Published voluntarily by the account holder. Source: https://paradev.com/tiffany